Abstract: Rotary cooling and heating apparatus comprising a rotary housing containing a refrigerant compressor, a refrigerant expander rotatable with the housing and an external refrigerant condenser and evaporator. The components are disposed on a common axis for coaxial rotation together as a unit, and rotary power means rotationally drives the compressor and the housing-condenser-evaporator unit at predetermined different speeds. The refrigerant expander is completely self-regulating and is constructed to operate in a highly stable manner essentially adiabatically with no nucleate boiling of the refrigerant in the expander.

Abstract: Rotary closed Rankine cycle cooling and heating apparatus utilizing a single fluid for both engine power and refrigeration. The apparatus includes a rotary housing containing a boiler, power fluid expander coupled with a refrigerant fluid compressor and a refrigerant expander. A condenser for the expanded power portion and the compressed refrigerant portion of the single fluid, and an evaporator for the expanded refrigerant fluid portion, are mounted at respectively opposite sides of the housing coaxially thereof for rotation with the housing as a unit. The power fluid expander is driven at a predetermined speed by pressure power fluid vapor generated in the boiler and in turn drives the refrigerant fluid compressor. The refrigerant expander is of the capillary type constructed and arranged with respect to the evaporator to automatically control the capacity balance of the refrigerant system.

Abstract: Rotary closed Rankine cycle engine powered electric generating apparatus including a rotary boiler, power fluid expander and means for condensing the exhaust vapor from the expander. The power fluid expander is rotatably driven at a predetermined speed by pressure fluid generated in the boiler and in turn drives an alternator that is hermetically sealed in a casing rotatable with the boiler and condensing means as a unit. The alternator is rotatably mounted in gas bearings and a portion of the power fluid condensed in said condensing means is utilized to cool the alternator and to provide power fluid vapor at a constant low pressure which is supplied to the gas bearings to lubricate said bearings. In the disclosed embodiments a magnetic-harmonic drive between the alternator and the rotary engine rotatably drives the latter at a predetermined speed substantially slower than the speed of the expander and alternator.